UNIT DIMENSIONS 4.4 IN W X 3.2 IN H X 2.25 IN D;DISPLAY SIZE 2.8 IN W X 2.1 IN H;LCD DISPLAY;RECHARGABLE LITHIUM ION BATTERY;PRELOADED MAPS;ABILITY TO ADD MAPS;BUILT IN INTERNAL SOLID STATE MEMORY;ACCEPTS SD CARDS;CONFIGURABLE VEHICLE ICONS;TOUCHSCREEN